No one knows transmissions & torque converters like

Sonnax

No one knows transmissions & torque converters like 2008-sonnax-logo-white

Transmission

Transmission

Torque Converter

Torque Converter

High Performance

High Performance

Driveline

Driveline

Heavy Duty Input Shafts

Heavy Duty Shafts
The perfect upgrades for any GM 4L60-series high-horsepower street or strip application.

Slip-yoke-slide

Chromoly Slip Yokes
New Chromoly 1350 series slip yokes deliver superior strength and durability.

Input Drum Reinforcement Kit

Input Drum Reinforcement Kit
New GM 4L60-series kit prevents cracking and works with stamped steel forward pistons.

Cash for Solenoid Cores

Start a core return online, or call (800) 843-2600, Ext. 379

Vacuum test guides

Vacuum Test Guides are a great tool for Valve Body Vacuum Testing

Oversized TCC Regulator Valve Kit

Ford 6F35 Oversized TCC Regulator Valve Kit

Oversized Pressure Regulator Valve Kit

Ford 6F50/6F55, GM 6T70/6T75 Oversized Pressure Regulator Valve Kit

Forward Clutch Drum

Ford 4R70W, 4R70E, 4R75W, 4R75E Forward Clutch Drum

Turbine Hub

VW 09A, JF506E Turbine Hub

Clutch Plate

ZF5HP24 Thicker Version Clutch Plate

Bearing Adapter

Ford 4R55E, 5R55E Late Production, A4LD Multi-Plate Bearing Adapter

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